Snorkelling: 30+ Things to Know

Sergio Atzori
Sergio Atzori
Table of Contents

1. What is snorkelling?

Snorkelling is a popular and very exciting water sport that involves watching life underwater with a mask and snorkel while staying on the surface. It is a simple sport and suitable for everyone at all ages.

2. What does snorkelling mean?

Snorkelling means lying face down on the surface of the water using a mask and snorkel to admire the wonders of the underwater environment.

The meaning of the word 'snorkel' can be traced back to the English word 'snorkel' which means snorkel, the tube you use to breathe with your face submerged in the water.

The purpose of snorkelling is not to swim fast but to observe the scenery and fish life.

3. How difficult is it to snorkel?

Snorkelling is very easy and fun. If you are a beginner, you can rely on the experience of a guide who will take you to the best snorkelling spots and give you all the information you need to do this activity safely. It will be a truly enjoyable experience!

4. Why snorkel?

Snorkelling is a relaxing activity that allows you to rediscover and strengthen your contact with nature. This water sport is practised in the water and awakens the 'forgotten sensations' we experienced before birth.

5. What equipment do you need for snorkelling?

The minimum equipment needed for snorkelling consists of a mask, snorkel, fins and warning balloon, and it may also be useful to have a shorty.

  • the maskA fundamental component of snorkelling equipment that allows you to see underwater;
  • the mouthpieceA rubber or plastic tube used for breathing with the face immersed in water;
  • finsThey allow you to move as nimbly through the water as a fish, and fins offer water resistance that allows you to move forward with less effort;
  • wetsuitDepending on the latitude and the time of year, you can use a short wetsuit or a long wetsuit to avoid feeling cold;
  • the signal balloonfor signalling presence in the water and, if necessary, as a buoyancy aid.


The wetsuit is generally not compulsory but it is very useful:

1. to protect against loss of body heat;

2. as buoyancy support;

3. to protect the body in case of accidental shocks.


Even if it's hot, don't snorkel without a wetsuit.

6. Why do you need a mask to see underwater?

Have you ever tried to put your head under water in the bathtub while keeping your eyes open? You can't see very well! So the right question is "Why does it look blurry underwater?

Underwater you see blurry because our eyes need air to see well, that's how our eyes work!

The purpose of the mask is to provide a small air space between our eyes and what we are looking at underwater; without this space, our eyes cannot focus.

7. How is the mask used?

This is a point of fundamental importance because if the mask is not adequate, there is more fatigue.
Before you start snorkelling it is important:

  1. Try the maskPlace the mask on your face (without placing the strap on the back of your head) and inhale air through your nose. If the mask remains attached to your face and does not fall off, it means that it adapts well to the shape of your face. This is the right one!


2. Adjusting the strapThe strap should be neither too tight nor too loose, but if in doubt, it is better to be loose. It is often thought that it is better to tighten the strap a lot to prevent water entering the mask, but the tighter you tighten the more water will enter. If you tighten it too much, moreover, for a few minutes you will have a conspicuous mark on your face that follows the mask.


Remember that the tighter you tighten the mask strap, the more water gets in!


3. Putting on anti-fogYou should know that when you use the mask, the glass fogs up so you can't see anything, that's why it is necessary to make an anti-fog treatment. Before wetting the mask it is necessary to put some saliva on the inside of the glass and spread it well, in slang it is called 😜 "spit the mask". This operation may seem repugnant but it is really very useful to prevent the mask from fogging up.

VERY IMPORTANT the mask must be dry when performing the anti-fog operation,

There are also anti-mask spays on the market, but nothing works better than saliva.

8. Can I keep my glasses on when snorkelling?

There are no masks that can be worn with eyeglasses, if you have vision problems you can wear contact lenses.

Consider that if your problem is mild (i.e. you don't have severe vision problems), you will most likely not have any difficulty seeing because the water correction factor tends to make things look closer than 25% and bigger than about 30%. This is why fishermen say they have caught huge fish!


If you get hooked in the future, you will be able to buy goggles with graduated lenses with the correction factor that suits your needs.

9. Why do you need a snorkel to snorkel?

The snorkel allows you to breathe comfortably while lying on the surface of the water without having to constantly lift your head for air. Snorkelling without a snorkel is very uncomfortable.

10. How do you use a snorkel for snorkelling?

The snorkel for snorkelling should be comfortable and of an appropriate size for the mouth. Children's snorkels are not suitable for adults and vice versa. A snorkel that is too big makes the cheeks cramp, a snorkel that is too small is uncomfortable and lets water in.

After finding an appropriately sized mouthpiece it is necessary to check that the stalks - the little teeth - on the bite of the aerator are intact. These stalks are necessary to position the mouthpiece correctly in the mouth and to prevent water from entering.

Correct use of the snorkel involves gently biting the stalks on the bite - tightening them with the teeth without over-tightening - then clamping the surrounding area with the lips to seal. "Fish mouth"

11. Can you breathe underwater with a snorkel?

Snorkelling is done by swimming face down on the surface with fins, mask and snorkel. The snorkel is used to breathe underwater while remaining on the surface. To go deep underwater you need a regulator and tank, but this activity is different from snorkelling.

Snorkelling: 30+ Things to Know

12. Why do you need fins for snorkelling?

Fins are used to move like a fish because the resistance they offer to the water allows you to move forward with less effort.



When snorkelling you have to take your time to see everything and enjoy the experience. If you go fast you miss out on most of the fun!

Snorkelling: 30+ Things to Know

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Sergio Atzori
Sergio Atzori

Do you have questions about this article or photos to publish?
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  1. Luana


    Can I book for 7 July? We have never come to Sardinia and are looking forward to it

    • Main


      Of course, select the excursion you prefer and send a private message to the tour organiser.

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